User Guide

Technical Instruction
Document No. 155-189P25
January 16, 2006
Page 2 Siemens Building Technologies, Inc.
Specifications,
Continued
Mounting location NEMA 1 (interior only)
Dimensions See Figure 2
Weight 0.43 lb (0.2 kg)
Service Kit
Diaphragm replacement kit (Package of five) 656-736
Operation
The control air signal upon the diaphragm causes the valve to modulate whenever the
air pressure is within the spring range of the valve.
Mounting and
Installation
AP0233R1
Figure 1. Acceptable Mounting Positions.
Allow 8 inches (200 mm) headroom and 6 inches (150 mm) on either side of the
actuator.
For best performance install the actuator vertically above the valve. The actuator can
be installed in any position between vertical and horizontal. We do not recommend
installing the actuator below horizontal or up side down. See Figure 1 for allowable
mounting positions.
Complete instructions for field mounting the actuator are included with the actuator.
Service
Diaphragm replacement
Complete instructions are included in the diaphragm replacement kit.